DARPA-funded work towards developing a solar cell that’s 50% efficient, for a finished module that’s 40% efficient, suitable for field soldier’s – via @Slashdot

September 15, 2012
“IEEE Spectrum magazine has a feature article describing DARPA-funded work towards developing a solar cell that’s 50% efficient, for a finished module that’s 40% efficient — suitable for charging a soldier’s gadgets in the field. Conventional silicon and thin-film PV tech can hitcell efficiencies of upwards of 20%, with finished modules hovering in the teens. Triple-junction cells can top 40%, but are expensive to produce and not practical in most applications. Current work by the Very High Efficiency Solar Cell program uses optics (dichroic films) to concentrate incoming sunlight by 20-200x, and split it into constituent spectra, which fall on many small solar cells of different chemistries, each tuned to maximize the conversion of different wavelengths.”

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This entry was posted on September 15, 2012 at 12:18 pm and is filed under EHS News



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